Leg-support



E. RAWLINSON.

LEG SUPPDRT.

APPLICATION FILED FEB. HI 1921.

1,400,625, v Patented Dec. 20, 1921.

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EDWARD RAVVLINSON OF VALLEJO, CALIFORNIA.

LEG-SUPPORT.

Specification of Letters Patent.

Patented Dec. 20, 1921.

Application filed February 14, 1921. Serial No. 444,969.

1 "0 all 1071077247, may concern:

Be it known that I, EDWARD RAwLINsoN, a citizen of the United States of America, residing at 1217 Napa street, city of Vallejo, in the county of Solano and State of California, have invented certain new and useful Improvements in Leg-Supports, of which the following is a specification.

The present invention is an adjustable leg support, and relates particularly to a device for ready attachment to an ordinary chair which will support an injured leg in various positions.

The primary object of the invention is to provide a device of such simple and economical construction that it will be within the reach of many disabled patientswho could not afford an invalid chair.

in hospitals it frequently happens that the equipment includes but one or two of these chairs which are expensive because of the many adjustments of bodily position, and that leg patients are obliged to lie in bed unnecessarily.

My device contemplates a leg support which is easily attached to any chair and which is provided with adjustment controls whereby a patient, unassisted, may adjust the device at difierent angles consistent with bodily comfort.

In this specification and the annexed drawings, the invention is illustrated in the form considered to be the best, but it is to be understood that the invention is not limited to such form, because it may be embodied in other forms and it is also to be understood that in and by claims following the description it is desired to cover the invention in whatever form it may be embodied.

In the accompanying 1 sheet of drawings:

Figure 1 is a side elevation of a chair showing my support attached thereto.

hi g. 2 is an enlarged side elevation of the support.

Fig. 3 is a top plan View of Fig. 2.

Referring to the drawings;

The numerals 1 and 2 indicate clamp members adapted to engage the seat portion 3 of a chair. These clamps are U shaped and are each provided with a wing bolt 4 screw threaded through one leg of the clamp in such a manner that when the bolt 1 is turned the device will grip the chair seat and expand the Ushaped clamp.

Each clamp is provided with a mortise through which extends an upright member 6 adapted to normally slide freely through The uprights 6 are connected by a cross bar 7 which engages any of apertures 8 to afiord vertical adjustment for ratchet means to be described later.

As a ready means for accomplishing this adjustment 1 provide the cross bar 7 with rlght and left threaded ends and thread apertures 8 to correspond.

The uprights 6 are pivotally connected at the upper ends to members 9 and 11 which serve as the thigh portion of an. articulate frame or leg support, side members 12 and 13 of which serve as a calf or lower leg support. The members 12 and 13 are pivotally connected respectively to the members 9 and 11 and may be held at any desired angle thereto by ratchet bolts 14 which serve to draw, the ratchet teeth of disks on the respective members into engagement in a well known manner The members 9 and 11 are joined near the middle of their length by a yoke 16 and the members 12 and 13 are similarly joined by a yoke 17 to give rigidity to the structure.

The end of the device remote from the chalr is provided with a foot rest 18 secured to a cross rod 19 journaled in the lower ends of members 21 and 22 pivotally con nected at the upper ends to the members 12 and 13 respectively.

A wing nut 23 secures the foot rest at any desired angle to the members 21 and 22 and a similar wing nut 24; secures the said members 21. and 22 at any desired angle to the members 12 and 13.

By these two adjustments the angle posi-,

ratchet notches 82 for engagement with the cross bar 7 in which position the device is releasably held by the weight of the device and that of the patients leg.

It will be seen that I have provided a device susceptible of many and varied adjustments which may be easily effected by the patient himself and which affords various comfortable positions at a minimum expense.

Obviously the frame members of my device may be draped or padded or upholstered in any suitable manner as with tape or cant vas in the Wa customar in hos itals.

otally secured to said thigh frame, means for releasably securing the thigh frame to the said upright members in various positions, and meansslidable on said upright members for securing the entire device to the seat of a chair.

8. A leg support for attachment to a chair comprising clamping means adapted to engage the seat of said chair, upright members slidable in said clamping means, means on said clamping means for engaging said up- 'ights when said clamp is attached to said chair and an articulate frame pivotally secured to said upright members.

i. A legsupport forattachment to a chair comprising clamping means adapted to engage the seat of said chair, upright members slidable in said clamping means, means on said clamping means for engaging said uprights when said clamp is attached to said chair and an articulate frame pivotally secured to said upright members, and means for securing the various members ofthe said articulate frame in various angular relative positions.

In testimony whereof I afiix my signature EDWARD RAWLINSON. 

